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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGeoJSONWriter.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkGeoJSONWriter - Convert vtkPolyData to Geo JSON format.
// .SECTION Description
// Outputs a Geo JSON (http://www.geojson.org) description of the input
// polydata data set.
#ifndef __vtkGeoJSONWriter_h
#define __vtkGeoJSONWriter_h
#include <vtkIOGeoJSONModule.h> // For export macro
#include <vtkWriter.h>
class vtkLookupTable;
class VTKIOGEOJSON_EXPORT vtkGeoJSONWriter : public vtkWriter
{
public:
static vtkGeoJSONWriter* New();
virtual void PrintSelf( ostream& os, vtkIndent indent );
vtkTypeMacro(vtkGeoJSONWriter,vtkWriter);
//Decription:
// Accessor for name of the file that will be opened on WriteData
vtkSetStringMacro(FileName);
vtkGetStringMacro(FileName);
// Description:
// Enable writing to an OutputString instead of the default, a file.
vtkSetMacro(WriteToOutputString,bool);
vtkGetMacro(WriteToOutputString,bool);
vtkBooleanMacro(WriteToOutputString,bool);
// Description:
// When WriteToOutputString in on, then a string is allocated, written to,
// and can be retrieved with these methods. The string is deleted during
// the next call to write ...
vtkGetMacro(OutputStringLength, int);
vtkGetStringMacro(OutputString);
unsigned char *GetBinaryOutputString()
{
return reinterpret_cast<unsigned char *>(this->OutputString);
}
// Description:
// Controls how data attributes are written out.
// When 0, data attributes are ignored and not written at all.
// When 1, values are mapped through a lookup table and colors are written to the output.
// When 2, which is the default, the values are written directly.
vtkSetMacro(ScalarFormat,int);
vtkGetMacro(ScalarFormat,int);
// Description:
// Controls the lookup table to use when ValueMode is set to map colors;
void SetLookupTable(vtkLookupTable *lut);
vtkGetObjectMacro(LookupTable, vtkLookupTable);
// Description:
// When WriteToOutputString is on, this method returns a copy of the
// output string in a vtkStdString.
vtkStdString GetOutputStdString();
// Description:
// This convenience method returns the string, sets the IVAR to NULL,
// so that the user is responsible for deleting the string.
// I am not sure what the name should be, so it may change in the future.
char *RegisterAndGetOutputString();
protected:
vtkGeoJSONWriter();
virtual ~vtkGeoJSONWriter();
// Only accepts vtkPolyData
virtual int FillInputPortInformation(int port, vtkInformation *info);
// Implementation of Write()
void WriteData();
// Helper for Write that writes attributes out
void WriteScalar(ostream *fp, vtkDataArray *da, vtkIdType ptId);
vtkLookupTable *LookupTable;
bool WriteToOutputString;
char *OutputString;
int OutputStringLength;
int ScalarFormat;
// Internal helpers
ostream *OpenFile();
void ConditionalComma(ostream *, vtkIdType, vtkIdType);
void CloseFile(ostream *);
char* FileName;
private:
vtkGeoJSONWriter(const vtkGeoJSONWriter&); // Not implemented.
void operator=(const vtkGeoJSONWriter&); // Not implemented.
};
#endif // __vtkGeoJSONWriter_h
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